Der Dompfaff

Bullfinch to you and actually Gimpel to me.

Dompfaff (Cathedral Cleric) because it looks like a priest with black head covering and scarlet robes.

Gimpel is the usual word - comes from the Bavarian/Austrian verb gumpen to jump, skip, hop.

Also known in Germany as:
Blutfink (Blood Finch)
Rotfink (Red Finch)
Rotvogel (Red Bird)
Rotgimpel (Red Gimpel)
Pollenbeißer (Pollen Chopper)
Knospenbeißer (Bud Chopper)
Gücker (Peeper)
Goll